I am reporting a serious safety defect involving a 2011 Buick LaCrosse CXL. The vehicle has repeatedly shut off while being driven, creating a dangerous situation. The issue first occurred in January 2026. The vehicle was later towed for repair in February 2026, and I was told the issue had been fixed and picked up the vehicle 3/20/2026 and gave 1600. However, on April 9, 2026, the vehicle shut off again while driving. This issue has occurred multiple times and persists despite repair attempts. When the vehicle shuts off, it creates a loss of power and poses a significant safety risk in traffic. I am concerned that this may be a broader safety issue and am requesting that this defect be documented and investigated.

Source: NHTSA complaint ODI #11731073 · view all complaints for this vehicle at nhtsa.gov

#07-06-04-019F: Intermittent Malfunction Indicator Lamp (MIL} Illuminated, OTC Pl':1.~J with Reduced Engine Power (Repair Instrument Panel (IP) to Body Harness Connector). Lost power on I-84 and had to cross over the right lane because I had no power, barely missing a rear end collision.

Source: NHTSA complaint ODI #11568681 · view all complaints for this vehicle at nhtsa.gov

When going around town or on the highway the steering wheel will start shaking badly and when going to break even after the breaks have been changed the parking break will not stay on and the steering wheel will start shaking horribly to the point where your might crash your car I have had the car looked at multiple times by different manufacturers dealerships and auto shops and they all say to Change the breaks I tell them that I had them changed by Buick and Chevrolet of Dan Cummins where I had got the car and they done the same thing over again as when I bought the car

Source: NHTSA complaint ODI #11685571 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2011 Buick Lacrosse. The contact stated while the vehicle was at a complete, his son was rear-ended by another vehicle. The air bag warning light illuminated on the instrument panel; however, the air bag did not deploy. As a result, the driver hit his head on the headrest. The driver did seek medical attention for his injury. A police report was filed. The vehicle was drivable. In addition, the seat belt retractor latches were not able to be used after the rear-ended accident. The manufacturer and dealer were not notified of the failure. The approximate failure mileage was 135,000.

Source: NHTSA complaint ODI #11458226 · view all complaints for this vehicle at nhtsa.gov

TRUNK RANDOMLY OPENS. IT HAS HAPPENED MANY TIMES AND MY KEY FOB IS NOT IN MY POCKET. I KEEP IT ON A CLIP ON MY PURSE WHEN NOT IN USE. ONCE I NOTICED THE ALERT IN MY CAR POPPED UP ON MY DISPLAY WHILE DRIVING @ 55 MPH AND I DID STOP AND CLOSED THE TRUNK. MOST OF THE TIME CAR HAS BEEN STATIONARY. ONCE IT MUST HAVE BEEN OPENED DURING THE NIGHT AND IT RAINED. WHOLE TRUNK WAS VERY WET. SEVERAL TIME WHILE AT WORK AND MY CAR WAS PARKED IN THE PARKING LOT--HAD SOMEONE TELL MY MY TRUNK WAS OPEN.

Source: NHTSA complaint ODI #11390477 · view all complaints for this vehicle at nhtsa.gov

The contact purchased a 2011 Buick Lacrosse. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 143,939 and at the time of registration, it was discovered that the mileage was 231,952.

Source: NHTSA complaint ODI #11750433 · view all complaints for this vehicle at nhtsa.gov